Anyone know (Environmental) Acoustics?

[CoryM]

Hi guys.

Our local autoX club has been getting noise complaints and I am wondering what could be done.

Info:
-Cars louder than 92dB at 50ft (tires or exhaust) are kicked out
-It's at an airport, so height of barriers etc is an issue

If you look at the picture below hopefully you will see the layout. There is no berm in the yellow part because, well.... airplanes. I was thinking if we placed 8ft tall shipping containers in the purple areas it should help? We should be able to place them just far enough apart to get a truck through. I figure an offer for cheap/free storage will get us at least several containers. I am not sure if we would be allowed to stack them.

If anyone has other options I am happy to hear them

Thanks,
Cory